US3870221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding carton
Assignee: Packaging Corp of America
•
Filing: 1973-10-09
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Granted: 1975-03-11
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Expires: 1993-10-09
Abstract
Abstract A folding carton is provided in which a window is formed having portions thereof disposed in adjacent angularly disposed panels of the carton. The adjacent panels are interconnected by a foldline. A window member overlies the window opening and the margin of the member is secured to the concealed surfaces of the panels circumjacent the opening. The foldline connecting the windowed panels is separated into two sections by the window opening. Each foldline section includes a pair of elongated scorelines which extend outwardly and convergently from the window opening and intersect one another at a point spaced outwardly from the margin of the window member.
Inventors
- 👤 Charles R Zeitter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:27
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/4204
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
113 words
A folding carton comprising a plurality of panels separated from one another by a plurality of foldlines, at least one pair of adjacent panels and the foldline connecting same having an enlarged window opening formed therein; and a bendable window member overlying said opening and having the margin of said member overlapping and being secured to the concealed surfaces of said panels and foldline cicumjacent said window opening; said opening separating said foldline into opposed aligned sections, each foldline section including a pair of scorelines extending laterally outwardly and convergently from the perimeter of the opening and intersecting one another at a point spaced laterally outwardly from the periphery of said window member.
Claim 2
Dependent Claim
113 words
A folding carton comprising a plurality of panels separated from one another by a plurality of foldlines, at least one pair of adjacent panels and the foldline connecting same having an enlarged window opening formed therein; and a bendable window member overlying said opening and having the margin of said member overlapping and being secured to the concealed surfaces of said panels and foldline cicumjacent said window opening; said opening separating said foldline into opposed aligned sections, each foldline section including a pair of scorelines extending laterally outwardly and convergently from the perimeter of the opening and intersecting one another at a point spaced laterally outwardly from the periphery of said window member.
Claim 3
Dependent Claim
113 words
A folding carton comprising a plurality of panels separated from one another by a plurality of foldlines, at least one pair of adjacent panels and the foldline connecting same having an enlarged window opening formed therein; and a bendable window member overlying said opening and having the margin of said member overlapping and being secured to the concealed surfaces of said panels and foldline cicumjacent said window opening; said opening separating said foldline into opposed aligned sections, each foldline section including a pair of scorelines extending laterally outwardly and convergently from the perimeter of the opening and intersecting one another at a point spaced laterally outwardly from the periphery of said window member.
Claim 4
Dependent Claim
113 words
A folding carton comprising a plurality of panels separated from one another by a plurality of foldlines, at least one pair of adjacent panels and the foldline connecting same having an enlarged window opening formed therein; and a bendable window member overlying said opening and having the margin of said member overlapping and being secured to the concealed surfaces of said panels and foldline cicumjacent said window opening; said opening separating said foldline into opposed aligned sections, each foldline section including a pair of scorelines extending laterally outwardly and convergently from the perimeter of the opening and intersecting one another at a point spaced laterally outwardly from the periphery of said window member.
Claim 5
Dependent Claim
46 words
The folding carton of claim 1 wherein the point of intersection of each pair of convergent scorelines is spaced from the margin of said window member by an amount at least substantially equal to the amount said margin overlies the surfaces of said panels and foldline.
Claim 6
Dependent Claim
30 words
The folding carton of claim 1 wherein the margin of said window member is adhesively secured to the concealed surfaces of said panels and said foldline circumjacent said window opening.
Claim 7
Dependent Claim
35 words
The folding carton of claim 1 wherein said panel and foldline concealed surfaces are in substantially planar relation and said window member assumes a substantially planar condition when said carton is in an unfolded state.
Claim 8
Dependent Claim
51 words
The folding carton of claim 4 wherein said panels and the segments of the window member affixed thereto, when said carton is set up, assume an abrupt angular relation, and the portion of said window member adjacent said foldline and interconnecting said window member segments assumes a smoothly curved non-creased configuration.
Claim 9
Dependent Claim
38 words
The folding carton of claim 2 wherein a third elongated scoreline extends laterally outwardly from the point of intersection of each pair of converGent scorelines; the third scorelines of said pairs of convergent scorelines being in axial alignment.
References Cited (Backward Citations)
US2700456A
Cited
US3206098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |